@FJAG agree to a point, but the Stryker troops still have a vehicle, so they aren’t planning on humping a rucksack, a day pack is about the extent of that dismount load.
The 82nd is effectively foot borne after a jump until an airfield is seized and some of the support vehicles can be moved in. Yes some vehicles and support weapons do get jumped in (and it’s Arty) but the Infantry fight is planned out of one’s rucksack — same with the Airmobile once they disembark the Bird.
I don’t see things like the ISV or GMV’s changing that calculus much other than for log moves.
AFAIK, there is a plan to add a bunch more 30mm to Stryker’s, the old RWS with M240 and either Mk19 or M2 was a good option for GWOT, but can’t do much to enemy LAV type vehicles outside 1km.
There were also plans to put an up gunned Bradley turret on it / though I don’t know what happened to that. I do now that the power pack, transmission etc have been upgraded due to issues with power for the networked systems and the DE C-UAS systems.
I probably should have broken Infantry down to 4 types, as the Motorized column doesn’t really fit items like the LAV 6.0, as it’s not really just a Battle Taxi due to the 25mm, but the wheels really don’t due it justice for fighting with tanks off road.
Then if one really wants to be pedantic you could say 5, as there is the Israeli NAMER which is really an Infanteer Assault Vehicle. Which isn’t really an IFV, but the HAPC title doesn’t really do it justice as it’s a tank in everything but lacking a main gun, and carrying troops.